1、 BBest Scenery Sights in Beijing CThe Jinsha Site DLittle Family, Big Values51As a tourist, which books will you buy? . ABBC History and Best Scenery Sights in Beijing BBest Scenery Sights in Beijing and The Jinsha Site CThe Jinsha Site and Little Family, Big Values DLittle Family, Big Balues and BB
2、C History52Which of the following is NOT right? ALittle Family, Big Values helps you live a better family life. BIt is a good idea for you to buy a Best Scenery Sights in Beijing for your foreign friends. CThe Jinsha site was a famous tourist attraction which has been opened for many years. DYou can
3、 get 12 BBC History in a year with many historical stories.DBELIEVE it or not,in the near future people wont just wear a chicken feather suit at Halloween or for fancy dressChickens, which have long provided food for dinner,will also be used to make out clothes as wellLast Monday,a report by the Uni
4、versity of Nebraska in the US said in the future it should be possible to use chicken feathers and rice straw to make clothes“All those wasted agriculture products dont have to be wasted anymore” researcher Yiqi Yang saidNew technology will change these by-products into something similar to wool,lin
5、en,or cotton Because producing synthetic fabrics(合成纤维)I causes pollution,scientists wanted to find a cheaper and environmentally friendly replacementThey turned their eyes to the millions of tons of rice straw and chicken feathers that are widely and cheaply available worldwide:Moreover they dont ca
6、use pollution like petroleum-based(石油化工的)fibersChicken feathers are mostly made up of the same kind of protein found in woolA sweater made from chicken feathers would feel just like a wool sweaterIt would be lighter in weight and warmer, too According to Yang and his team,rice straw,oil the other:ha
7、nd,call produce a fabric that looksand feels similar to cotton or linenThe process is also environmentally friendlyThe total production cost of rice fiber is about 50 cents per pound, while cotton now sells for about 60 cents a poundMaybe some day in the future you will wear fantastic clothes like t
8、hese53The wasted agriculture products are Awool and cotton Bsynthetic fabrics and petroleum-based fibers Cchicken feather and rice straw Dwool and linen54According to the passage the following are true except that Asweaters made from chicken feathers would be cheaper than wool sweaters Bthe cost of
9、the cotton fiber is about 20less than that of rice straw fiber Cproducing petroleum based fibers causes pollutions Dchicken feather suits are popular at Halloween55Scientists choose chicken feathers and rice straw to be the replacement of the old clothes materials mainly because Athey are very cheap
10、 and can be found everywhere Bthey can be made into similar materials to wool, cotton or linen Cthey are environmentally friendly products Dall the above56The passage would probably be part of Aa research report Ba news report Ca fashion report Dan advertisement EOn Feb. 2, 2007, the United Nations
11、ScientificPanel which studies climate change declared that theevidence of a warming trend is “unequivocal,” andthat human activity has “very likely” been the drivingforce in that change over the last 50 years.The addition of that single word “very” did morethan reflect the increasing scientific evid
12、ence that the release of carbon dioxide and other heat-trapping gases has played a central role in raising the average surface temperature of the earth by more than 1 degree Fahrenheit since 1900. It also added new momentum(动力)to a debate that now seems sintered less over whether humans are warming
13、the planet, but instead over what to do about it. In recent months, business groups have united to make calls for official rules of greenhouse gases. The subject has a red-carpet moment when former Vice President AL Gores “An Inconvenient Truth” was awarded an Oscar.The greenhouse effect has been pa
14、rt of the earths workings since its earliest days. Gases like carbon dioxide and methane allow sunlight to reach the earth, but prevent some of the resulting heat from radiating back out into space. Without the greenhouse effect, the planet would never have warmed enough to allow life to form. But as ever larger amounts of carbon dioxide have been released along with the development of industrial economies, the atmosphere has grown warmer at a faster rate Since 1970, temperatures have gone
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